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/**
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* Copyright (C) 2018 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.editor.view.descriptive.e4.handler;
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import javax.inject.Named;
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import org.eclipse.e4.core.di.annotations.Execute;
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import org.eclipse.e4.ui.di.UISynchronize;
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import org.eclipse.e4.ui.model.application.ui.basic.MPart;
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import org.eclipse.e4.ui.model.application.ui.menu.MMenuItem;
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import org.eclipse.e4.ui.services.IServiceConstants;
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import org.eclipse.jface.viewers.TreeNode;
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import org.eclipse.swt.widgets.Shell;
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import eu.etaxonomy.cdm.model.common.IdentifiableSource;
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import eu.etaxonomy.cdm.model.common.OriginalSourceType;
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import eu.etaxonomy.cdm.model.occurrence.SpecimenOrObservationBase;
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import eu.etaxonomy.cdm.model.reference.Reference;
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import eu.etaxonomy.cdm.model.taxon.Taxon;
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import eu.etaxonomy.cdm.model.taxon.TaxonBase;
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import eu.etaxonomy.taxeditor.editor.EditorUtil;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.e4.FactualDataPartE4;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.CreateSpecimenDescriptionOperation;
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import eu.etaxonomy.taxeditor.editor.view.descriptive.operation.CreateTaxonDescriptionOperation;
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import eu.etaxonomy.taxeditor.model.AbstractUtility;
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import eu.etaxonomy.taxeditor.operation.AbstractDescriptionPostOperation;
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import eu.etaxonomy.taxeditor.ui.dialog.selection.ReferenceSelectionDialog;
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/**
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 * @author pplitzner
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 * @since Sep 20, 2018
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 *
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 */
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public class CreateDescriptionWithSourceHandler {
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    @Execute
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    public void execute(@Named(IServiceConstants.ACTIVE_PART) MPart activePart, MMenuItem menuItem,
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            UISynchronize sync, @Named(IServiceConstants.ACTIVE_SHELL) Shell shell) {
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        Reference reference = ReferenceSelectionDialog.select(shell, null);
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        FactualDataPartE4 factualDataPart = (FactualDataPartE4) activePart.getObject();
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        AbstractDescriptionPostOperation operation = null;
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        Object viewerInput = factualDataPart.getViewer().getInput();
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        if (viewerInput instanceof TreeNode) {
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            viewerInput = ((TreeNode) viewerInput).getValue();
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        }
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        if (viewerInput instanceof SpecimenOrObservationBase<?>) {
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            operation = new CreateSpecimenDescriptionOperation(menuItem.getLocalizedLabel(),
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                    EditorUtil.getUndoContext(), (SpecimenOrObservationBase<?>) viewerInput, factualDataPart);
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            AbstractUtility.executeOperation(operation, sync);
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        }
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        if (viewerInput instanceof TaxonBase) {
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            operation = new CreateTaxonDescriptionOperation(menuItem.getLocalizedLabel(), EditorUtil.getUndoContext(),
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                    (Taxon) viewerInput,
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                    IdentifiableSource.NewInstance(OriginalSourceType.Unknown, null, null, reference, null), factualDataPart);
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            AbstractUtility.executeOperation(operation, sync);
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        }
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    }
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}
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